perf annotate: Use perf_tool__init()

Use perf_tool__init() so that more uses of 'struct perf_tool' can be const
and not relying on perf_tool__fill_defaults().
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ilkka Koskinen <ilkka@os.amperecomputing.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Yicong Yang <yangyicong@hisilicon.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20240812204720.631678-18-irogers@google.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/builtin-annotate.c

@@ -696,28 +696,7 @@ static const char * const annotate_usage[] = {
 
 int cmd_annotate(int argc, const char **argv)
 {
-	struct perf_annotate annotate = {
-		.tool = {
-			.sample	= process_sample_event,
-			.mmap	= perf_event__process_mmap,
-			.mmap2	= perf_event__process_mmap2,
-			.comm	= perf_event__process_comm,
-			.exit	= perf_event__process_exit,
-			.fork	= perf_event__process_fork,
-			.namespaces = perf_event__process_namespaces,
-			.attr	= perf_event__process_attr,
-			.build_id = perf_event__process_build_id,
-#ifdef HAVE_LIBTRACEEVENT
-			.tracing_data   = perf_event__process_tracing_data,
-#endif
-			.id_index	= perf_event__process_id_index,
-			.auxtrace_info	= perf_event__process_auxtrace_info,
-			.auxtrace	= perf_event__process_auxtrace,
-			.feature	= process_feature_event,
-			.ordered_events = true,
-			.ordering_requires_timestamps = true,
-		},
-	};
+	struct perf_annotate annotate = {};
 	struct perf_data data = {
 		.mode  = PERF_DATA_MODE_READ,
 	};
@@ -876,6 +855,25 @@ int cmd_annotate(int argc, const char **argv)
 
 	data.path = input_name;
 
+	perf_tool__init(&annotate.tool, /*ordered_events=*/true);
+	annotate.tool.sample	= process_sample_event;
+	annotate.tool.mmap	= perf_event__process_mmap;
+	annotate.tool.mmap2	= perf_event__process_mmap2;
+	annotate.tool.comm	= perf_event__process_comm;
+	annotate.tool.exit	= perf_event__process_exit;
+	annotate.tool.fork	= perf_event__process_fork;
+	annotate.tool.namespaces = perf_event__process_namespaces;
+	annotate.tool.attr	= perf_event__process_attr;
+	annotate.tool.build_id = perf_event__process_build_id;
+#ifdef HAVE_LIBTRACEEVENT
+	annotate.tool.tracing_data   = perf_event__process_tracing_data;
+#endif
+	annotate.tool.id_index	= perf_event__process_id_index;
+	annotate.tool.auxtrace_info	= perf_event__process_auxtrace_info;
+	annotate.tool.auxtrace	= perf_event__process_auxtrace;
+	annotate.tool.feature	= process_feature_event;
+	annotate.tool.ordering_requires_timestamps = true;
+
 	annotate.session = perf_session__new(&data, &annotate.tool);
 	if (IS_ERR(annotate.session))
 		return PTR_ERR(annotate.session);